Revenue has announced that the deadline for submission of annual Residential Zoned Land Tax (RZLT) returns for 2025 has been extended to Friday, May 30, 2025.

RZLT is a self-assessed annual tax based on the valuation of a relevant site. It is calculated at 3% of the market value of the relevant site.

It aims to activate serviced, zoned land for residential or mixed use to boost housing supply and regenerate vacant, idle urban land. Some farmers and landowners have applied to have their land rezoned.

Revenue said it has seen positive levels of engagement from site owners in respect of their RZLT obligations to date, with liabilities of approximately €12 million having been paid.

Revenue added that it is, however, aware that some site owners have commenced the process to register for RZLT, but have not yet submitted a return.

The extension is aimed at supporting taxpayers by giving them additional time to complete this process.

RZLT aims to incentivise landowners to activate existing planning permissions for housing on land identified on maps published by Local Authorities as meeting this criteria, or to engage with planning authorities and seek planning permission in respect of such land.

The tax applies from 2025 onwards, at a rate equal to 3% of the market value of the relevant site. Site owners with land which has been included on the Local Authority 2025 Revised Maps are advised to register for RZLT and submit their return online.

There is a 24-hour turnaround time between completing the RZLT registration and issuance of the Site ID required to complete the RZLT return. As such, early engagement with the registration process is encouraged, according to Revenue.

Taxpayers are advised to ensure that they have as much information to hand as possible when completing their registration, to ensure that their identity can be verified.

Revenue has said that if it is not possible to verify the taxpayer’s identity online, password and registration details will be issued by standard post.

Taxpayers using an agent or advisor to assist them in filing their RZLT return should note that their agent or advisor must be linked to their Revenue record through the Agent Link Manager Application process.

As part of this process, the agent or advisor should initiate the link request, and the taxpayer will then receive a prompt, through their ROS inbox notification or MyEnquiries, to review and accept the request.

As a self-assessed tax, Revenue stated that site owners are responsible for determining whether they have a liability to RZLT, and, if so, for satisfying their pay and file obligations.

Surcharges will be applied where a site owner, who is required to submit an RZLT return, fails to do so. These surcharges range from 10% to 30%.